My Post #19 from the original thead.........
I'm not at all sure the the noun "profundity" can be applied to music, in an attempt to categorize it. It seems best to reserve the terms "profound, profundity" to truly illuminating, penetrating insights or discoveries that pierce through a jumble of seemingly isolated and discrete facts about reality and reveal to us an underlying deep truth that knits together many disparate facts into a unity. Examples would be the Theories (using the term as scientists use it) of Special and General Relativity, Evolution by Natural Selection, Plate Tectonics, and many recently verified discoveries in astronomy and cosmology. These are profound. There are areas of mathematics that are profound, and doubtless others will bring forth other examples. But Music? Art? We find ourselves back again in a forest of tautologies and of competing definitions and of opinions about who was great, what was great, or deep or profound. However, in cante flamenco for instance, where the song can be very jondo or grande, the measuring rod is simpler and generally accepted: to what extent does the performance, delivered within the recognized confines and accepted usages of the art form, move the listener, directly, emotionally, to empathetic sorrow, tears? Maybe not the same as the Eroica, but the criterion for profundity is clearly laid down here. In the more formal arts, such clarity of criteria is rarely found and often widely disputed.